Patents Assigned to Leif J. Ostberg, Inc.
  • Shoe sole with wavy tread
    Patent number: D329131
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: September 8, 1992
    Assignee: Leif J. Ostberg, Inc.
    Inventor: Leif J. Ostberg
  • Shoe sole with deep hexagon tread
    Patent number: D329132
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: September 8, 1992
    Assignee: Leif J. Ostberg, Inc.
    Inventor: Leif J. Ostberg